Microchip Technology PIC32 WFI32E User manual

PIC32 WFI32E
PIC32 WFI32E Curiosity Board User's Guide
Introduction
The PIC32 WFI32E Curiosity Board enables the user to evaluate and demonstrate the functionality of the
PIC32MZ1025W104 System-on-Chip (SoC) and WFI32E01 module. This board is a modular development board that
supports rapid prototyping using on-chip microcontroller (MCU) peripherals. This board offers integrated
programming/debugging features using PICkitTM On- Board (PKOB3) debugger, and requires only a micro-USB cable
to power-up and program the board. The PIC32 WFI32E Curiosity Board supports a variety of applications such as
Internet of Things (IoT) and other Wi-Fi®-enabled applications.
Features
• Certified WFI32E01 Module Mounted on the WFI32E01 Carrier Board
• mikroBUS™ Socket to Expand Functionality using MikroElectronika Click Boards
• Support for Multiple Microchip Ethernet PHY Daughter Boards
• Two User LEDs
• One User Configurable Switch
• One Reset Switch
• One GPIO Expansion Header
• On-board Temperature Sensor
• 20-Pin XPRO Header
• 32-Mb External SPI Flash Memory
• In-Circuit Serial ProgrammingTM (ICSP) Header for External Debugger, such as MPLAB® ICD 4, MPLAB PICkit
4 and MPLAB Snap
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Table of Contents
Introduction.....................................................................................................................................................1
Features......................................................................................................................................................... 1
1. Quick References....................................................................................................................................4
1.1. Reference Documentation............................................................................................................4
1.2. Hardware Prerequisites................................................................................................................4
1.3. Software Prerequisites................................................................................................................. 4
1.4. Acronyms/Abbreviations...............................................................................................................4
2. Kit Overview............................................................................................................................................ 6
2.1. Kit Contents..................................................................................................................................6
3. Hardware.................................................................................................................................................7
3.1. Power Supply............................................................................................................................... 7
3.2. Debugger/Programmer Selection.................................................................................................8
3.3. ICSP Header................................................................................................................................ 9
3.4. USB Connectivity....................................................................................................................... 10
3.5. mikroBUS Socket....................................................................................................................... 10
3.6. Switches .................................................................................................................................... 11
3.7. LEDs...........................................................................................................................................11
3.8. Ethernet Interface.......................................................................................................................12
3.9. GPIO Header..............................................................................................................................13
3.10. XPRO Header............................................................................................................................ 14
3.11. Temperature Sensor...................................................................................................................15
3.12. Serial Flash................................................................................................................................ 16
3.13. Carrier Board Interface...............................................................................................................16
4. PIC32 WFI32E Curiosity Board Out of Box Demo................................................................................ 22
5. Appendix A: WFI32E01 Carrier Board.................................................................................................. 23
6. Appendix B: Reference Circuit.............................................................................................................. 24
6.1. PIC32 WFI32E Curiosity Board Reference Schematics.............................................................24
6.2. PIC32 WFI32E Curiosity Board Bill of Materials........................................................................ 28
6.3. WFI32E01 Carrier Board Bill of Materials.................................................................................. 31
7. Regulatory Approval..............................................................................................................................33
7.1. United States..............................................................................................................................33
7.2. Canada.......................................................................................................................................33
7.3. Europe........................................................................................................................................34
8. Document Revision History...................................................................................................................35
The Microchip Website.................................................................................................................................36
Product Change Notification Service............................................................................................................36
Customer Support........................................................................................................................................ 36
PIC32 WFI32E
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Microchip Devices Code Protection Feature................................................................................................ 36
Legal Notice................................................................................................................................................. 37
Trademarks.................................................................................................................................................. 37
Quality Management System....................................................................................................................... 38
Worldwide Sales and Service.......................................................................................................................39
PIC32 WFI32E
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1. Quick References
1.1 Reference Documentation
For further details, refer to the following:
•PIC32MZ1025W104 MCU and WFI32E01 Module with Wi-Fi® and Hardware-based Security Accelerator Data
Sheet (DS70005425)
•PIC32MZ W1 Software User’s Guide (DS50003034)
•PIC32MZ1025W104 MCU and WFI32E01 Module with Wi-Fi® and Hardware-based Security Accelerator Errata
(DS80000912)
•MPLAB® XC32 C/C++ Compiler User’s Guide (DS50001686)
•MPLAB® X IDE User’s Guide (DS50002027))
•MPLAB® Snap In-Circuit Debugger Information Sheet (DS50002787)
•Universal Serial Bus Specification and Associated Documents (www.usb.org/)
•mikroBUS™ Specification (www.mikroe.com/mikrobus)
1.2 Hardware Prerequisites
• PIC32 WFI32E Curiosity Board kit
• Any of the following in-circuit debugger or programmers:
– MPLAB Snap
– MPLAB PICkit 4
– MPLAB ICD 4
1.3 Software Prerequisites
• MPLAB Integrated Development Environment (MPLAB X IDE) tool (version 5.35 or later)
• MPLAB XC32 compiler (version 2.40 or later)
• MPLAB Snap (www.microchip.com/developmenttools/ProductDetails/PartNO/PG164100)
• Released OOB demo (github.com/MicrochipTech/PIC32MZW1_Curiosity_OOB)
1.4 Acronyms/Abbreviations
Table 1-1. Acronyms/Abbreviations
Acronyms Abbreviations
ADC Analog-to-Digital Converter
BOM Bill of Material
CVD Capacitive Voltage Divider
GPIO General Purpose Input Output
I2C Inter-Integrated Circuit
ICD In-Circuit Debugger
ICSP In-Circuit Serial Programming
IoT Internet of Things
JTAG Joint Test Action Group
PIC32 WFI32E
Quick References
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...........continued
Acronyms Abbreviations
LDO Low-Dropout
LED Light Emitting Diode
MCU Microcontroller
NC Not Connected
OOB Out of Box
OTG On-The-Go
PCB Printed Circuit Board
PKOB PICKit On-Board
PPS Peripheral Pin Select
PWM Pulse Width Modulation
RMII Reduced Media Independent Interface
RTCC Real Time Clock and Calendar
RX Receiver
SCL Serial Clock
SDA Serial Data
SMD Surface Mount
SoC System-on-Chip
SPI Serial Peripheral Interface
TX Transmitter
UART Universal Asynchronous Receiver-Transmitter
USB Universal Serial Bus
PIC32 WFI32E
Quick References
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2. Kit Overview
The PIC32 WFI32E Curiosity Board contains a WFI32E01 module mounted on the carrier board. All the signals from
the module are brought onto the Curiosity board, where they are connected to on-board peripherals or are terminated
onto headers for rapid prototyping or evaluation.
Figure 2-1. PIC32 WFI32E Curiosity Board (EV12F11A)
User Configurable Switch (SW200)
Power Source Selection
Jumper (J202)
mikroBUS Socket (J200)
Reset Switch (SW201)
GPIO Header (J207)
Ethernet PHY Header (J208)
WFI32E01 Module
Temperature Sensor (J209)
XPRO Header (J203)
Target USB (J204)
Debug USB (J302)
ICSP Header (J206)
WFI32E01 Carrier Board
VBUS-VIN
PKOB-VIN
P/S-VIN
3V3_MOD and 3V3_IN (J102)
™
External Power Supply (J201)
SST26VF032B SPI Flash
Debugger/Programmer Header (J301)
Carrier Board Connector (J401)
USB Host/Device Selection Jumper (J205)
Switch Selection Jumper (J211)
2.1 Kit Contents
The PIC32 WFI32E Curiosity Board kit contains the following:
• PIC32 WFI32E Curiosity Board that contains a WFI32E01PC module mounted on a WFI32E01 carrier board
• Type-A male to Micro-B USB cable
Note: If any of the above items are missing in the kit, go to support.microchip.com or contact your local Microchip
sales office. A list of Microchip office for sales and services is provided on the last page of this document.
PIC32 WFI32E
Kit Overview
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3. Hardware
This chapter describes the hardware features of the PIC32 WFI32E Curiosity Board.
Figure 3-1. PIC32 WFI32E Curiosity Board Block Diagram
Status LEDs
Temperature
Sensor
GPIO Header
XPRO Header GPIO/I2C/UART/SPI
GPIO/UART/JTAG
ADC
GPIO
GPIO
PGEC/PGED
MCLR
WFI32E01 Module
GPIO/I2C/UART/SPI
SPI
Ethernet MAC Pinout
mikroBUS Socket
TM
Ext SPI Flash
Ethernet PHY Header
Target USB
Micro-B USB
Power
Circuit
Power
Switch
External
Power
Supply
Micro-B USB
Debug USB
MCLR Switch
ICSP
PKOB
+3.3V_PKOB
+5V
+3.3V
RMII
Carrier Board Connector
3.1 Power Supply
The PIC32 WFI32E Curiosity Board can be powered using any of the following sources:
• External 5V (J201)
• PKOB3 micro-B USB (J302)
• Target VBUS micro-B (J204)
The following table lists the power supply source details and its jumper positions.
Table 3-1. Power Supply Sources
Power Input Description Jumper Position (J202)(1)
External 5V (J201) Connect the Curiosity board to an external 5V
power supply
P/S-VIN (2-1)
PKOB3 micro-B USB (J302) Connect the Type-A male to micro-B USB cable to
the USB debug port for power supply
PKOB-VIN (4-3)
Target VBUS micro-B (J204) Connect the Type-A male to micro-B USB cable to
the USB power port for power supply
VBUS-VIN (6-5)
Note:
1. J202 in Figure 2-1.
PIC32 WFI32E
Hardware
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The following figure illustrates the jumper positions for powering the Curiosity board.
Figure 3-2. Jumper Configuration for Power Input
3V3_MOD and 3V3_IN (J102)
Note: Ensure that the 3V3_MOD and 3V3_IN of J102 are connected on the WFI32E01 carrier board.
Use the J202 jumper to select the voltage source for the Curiosity board. The MCP1727 voltage regulator generates
a +3.3V power supply for the MCU. Connect the PKOB debugger to a host PC. Turn on the power supply (+3.3V and
+5V) to the Curiosity board via a power switch (MIC2005A) to drive the ENABLE signal to high.
Figure 3-3. Power Tree Diagram
+5V Header
USB
USB 3.3 V
REGULATOR PKOB
J302
J204
J205
U202 U303
D200
D301
VIN
3
5
1
4
VBUS_DBG
VBUS_TGT
+3.3V_PKOB
+5 V
+3.3 V
ENABLE
J202 MIC2005A
U304
MCP1727
MIC2005A
MIC2005A
U200
VBUSON
2
6
Micro B
Micro B
J201
U300
D- PKOB
D+ PKOB
D- WFI32
D+ WFI32
WFI32
3.2 Debugger/Programmer Selection
By default, the external debugger is connected to the programming pins (PGEC2 and PGED2) of the WFI32E01
module. The following table lists the details of the debugger/programmer selection using the J301 header.
Important: Use an external debugger such as MPLAB ICD 4, MPLAB PICkit 4 or MPLAB Snap for the
best programming and debugging experience.
The PIC32 WFI32E Curiosity Board has an on-board debugger (PKOB3) based on the PIC24FJ256GB106 MCU.
The on-board debugger enables the user to power, program and debug through the micro-B USB connector (J302).
PIC32 WFI32E
Hardware
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Table 3-2. Debugger/Programmer Selection
Header Position (J301)(1) Debugger Used Description
Pins 1-2 and 3-4 shorted On-board Selects the on-board debugger
Pins 1-2 and 3-4 open External Selects the external debugger (for more details, refer to 3.3 ICSP
Header)
Note:
1. J301 in Figure 2-1.
3.3 ICSP Header
The ICSP header (J206) is a standard 6-pin staggered header. It allows in-circuit emulation and debugging using
Microchip's in-circuit emulator tools and it allows direct programming of the WFI32E01 module. The ICSP header
supports external debuggers, such as MPLAB ICD 4, MPLAB PICkit 4 and MPLAB Snap. Use the standard ICSP
header to connect an MPLAB programmer or debugger to the PIC32 WFI32E Curiosity Board. The following figure
illustrates the connection between the ICSP header, external debuggers and the PIC32 WFI32E Curiosity Board.
Figure 3-4. Connection Diagram
Pin 7 and Pin 8 are not used in ICSP Connector
MPLAB Snap MPLAB PICkit 4
AC164110 Adapter
®
®
Pin 1 Pin 1
Pin 1
MPLAB ICD 4
®
The following table provides the pin details and descriptions of the ICSP header.
Table 3-3. ICSP Header Description
Pin Number Pin on ICSP
Header
Pin Description of ICSP Header Pin on WFI32E01 Module(1)
1 MCLR Reset pin MCLR
2 3V3 3.3V power supply +3V3
PIC32 WFI32E
Hardware
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...........continued
Pin Number Pin on ICSP
Header
Pin Description of ICSP Header Pin on WFI32E01 Module(1)
3 GND Ground GND
4 PGD ICSP™ programming data PGD2/AN5/CVD5/CVDR5/CVDT2/RTCC/
RPB5
5 PGC ICSP™ programming clock PGC2/AN4/CVD4/CVDR4/CVDT3/
RPB4/RB4
6 NC Not connected NC
Notes:
1. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
2. Use an external debugger such as MPLAB ICD 4 or MPLAB Snap for the best programming and debugging
experience.
3.4 USB Connectivity
The WFI32E01 module has an integrated full-speed USB peripheral. This feature enables the user to implement USB
functionality through the micro-AB USB connector (J204) on the PIC32 WFI32E Curiosity Board. Connect the board
using any one of these modes:
• Device mode:
1. Connect the host PC to the target USB connector (J204) using a USB Type-A male to micro-B male USB
cable.
2. Use the J301 jumper to select the required power source for the board.
Note: Do not place the jumper on the J205 connector.
• Host mode:
1. Connect the USB device to the target USB connector (J302) using a USB Type-A female to micro-B male
USB cable.
Note: A micro-B male USB cable is not available in the kit.
2. Place a jumper in the J205 header to drive the VBUS line in the Host mode.
3. Use the J301 jumper to select the power source either from the debug USB connector or the external 5V
input.
3.5 mikroBUS Socket
A mikroBUS socket (J200) expands the functionality of the PIC32 WFI32E Curiosity Board using the MikroElectronika
click adapter boards. The mikroBUS connector consists of two 1 x 8 female headers with Serial Peripheral Interface
(SPI), Inter-Integrated Circuit (I2C), Universal Asynchronous Receiver-Transmitter (UART), Reset (GPIO), Pulse
Width Modulation (PWM), analog and interrupt lines, as well, as 3.3V, 5V and ground power lines. The following table
describes the pinout details of the mikroBUS socket.
Table 3-4. mikroBUS Socket Pinout Details
Pin
Number
Pin on
mikroBUS
Socket
Pin Description of mikroBUS
Socket
Pin on WFI32E01 Module(1)
1 AN Analog input AN14/ANN0/CVD14/CVDR14/RPA14/RA14
2 RST Reset TMS/AN6/CVD6/CVDR6/RPB6/RB6
3 CS SPI Chip Select PTA_BT_PRIO/RPK6/RK6
PIC32 WFI32E
Hardware
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...........continued
Pin
Number
Pin on
mikroBUS
Socket
Pin Description of mikroBUS
Socket
Pin on WFI32E01 Module(1)
4 SCK SPI Clock SCK2/RPA11/RA11
5 MISO SPI Master Input Slave Output BT_CLK_OUT/RPK4/RK4
6 MOSI SPI Master Input Slave Input PTA_BT_ACTIVE/RPK7/RK7
7 +3.3V 3.3V power +3.3V
8 GND Ground GND
9 GND Ground GND
10 +5V 5V power +5V
11 SDA I2C Data SDA1/RPA5/RA5
12 SCL I2C Clock SCL1/RPA4/RA4
13 TX UART transmit TDO/AN7/CVD7/CVDR7/RPB7/RB7
14 RX UART receive TDI/PGD4/AN9/CVD9/CVDR9/RPB9/RB9
15 INT Hardware interrupt BT_CLK_OUT/RPK4/RK4
16 PWM PWM output ANA0/RPB12/RB12
Notes:
1. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
2. The SPI interface on the click board can operate up to 12.5 MHz and the WFI32E01 module supports up to 20
MHz.
3.6 Switches
The following switches are available on the PIC32 WFI32E Curiosity Board:
• User-configurable switch (SW200)
• Reset switch (SW201) – Connected with MCLR signal of the WFI32E01 module
In the Idle state, the level of the user-configurable switch is pulled high (+3.3V) and, when the switch is pressed, it
drives the I/O line to low (GND).
Table 3-5. Switches Description
Switch Name Pin on WFI32E01 Module Description
SW1 AN17/CVD17/CVDR17/INT0/RPA10/
RA10
User configurable switch (SW200)
MCLR MCLR Reset switch (SW201)
Note: By default, the SW200 switch is connected to the switch input. Use the J211 jumper to configure the board to
the switch or external interrupt.
3.7 LEDs
The on-board LEDs are categorized into two types:
• Power LEDs
PIC32 WFI32E
Hardware
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– Vin Green (D201)
– 5V Green (D200)
– +3.3V Green (D301)
• LEDs related to the WFI32E01 module:
– Red LED (D202)
– Green LED (D204)
The following table lists the LEDs that can be turned ON or OFF using the connected GPIO pins:
Table 3-6. LEDs Description
Pin on WFI32E01 Module Description Function
RF_FE_4/RPK1/RK1 RF front-end control/remappable
peripheral/PORTK digital I/O
Red LED (D202)
RF_FE_2/RPK3/RK3 RF front-end control/remappable
peripheral/PORTK digital I/O
Green LED (D204)
3.8 Ethernet Interface
The PIC32 WFI32E Curiosity Board includes headers to mount different Ethernet PHY daughter boards to implement
a complete Ethernet node for networking. This user guide uses the LAN8720A PHY daughter board (AC320004-3) as
an example.
Table 3-7. Ethernet PHY Daughter Board
Daughter Board Part Number
LAN8720A PHY daughter board AC320004-3
Note: Ethernet PHY daughter boards are not verified for regulatory compliance.
The Microchip LAN8720A PHY daughter board is populated with a small footprint RMII 10/100 Ethernet transceiver
(LAN8720A). This daughter board enables Ethernet communication with a variety of Microchip development boards.
The following table lists the pin details and descriptions of the Ethernet PHY daughter board.
Table 3-8. Ethernet PHY Daughter Board Header Pin Description
Pin
Number
Pin on
Ethernet PHY
Daughter
Board
Pin Description of Ethernet
PHY Daughter Board
Pin on WFI32E01 Module(1)(2)
1 TX_EN Ethernet Transmit Enable CVDT11/ETXEN/RPC13/RC13
2 TXDO Ethernet Transmit Data 0 CVDT13/ETXD0/RPC15/RC15
3 TXD1 Ethernet Transmit Data 1 CVDT12/ETXD1/RPC14/RC14
4 NC Not connected NC
5 NC Not connected NC
6 GND Ground GND
7 XTALI Clock output NC
8 CLK_IN Clock input ETH_CLK_OUT/CVDT10/RPC12/RC12
9 GND Ground GND
10 +3V3 Input power supply 3V3
11 NC Not connected NC
PIC32 WFI32E
Hardware
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...........continued
Pin
Number
Pin on
Ethernet PHY
Daughter
Board
Pin Description of Ethernet
PHY Daughter Board
Pin on WFI32E01 Module(1)(2)
12 NC Not connected NC
13 NC Not connected NC
14 NC Not connected NC
15 RXD1 Ethernet Receive Data 1 CVDT8/ERXD1/RPC10/RC10
16 RXD0 Ethernet Receive Data 0 CVDT9/ERXD0/RPC11/RC11
17 RX_ER Ethernet Receive Error CVDT7/ERXERR/RPC9/RC9
18 CRS_DV Ethernet Rx Data Valid Input CVDT14/ERXDV/RPK12/RK12
19 MDC Ethernet Management Data
Clock Output
CVDT16/EMDC/RPK14/RK14
20 MDIO Ethernet Management Data
Input Output
CVDT15/EMDIO/RPK13/RK13
21 INT Interrupt output PTA_BT_PRIO/RPK6/RK6
22 RST System Reset AN14/ANN0/CVD14/CVDR14/RPA14/RA14
23 NC Not connected NC
24 NC Not connected NC
Notes:
1. These are Peripheral Pin Select (PPS) pins and can be configured for any of the supported peripheral
functions based on the end user application.
2. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
3.9 GPIO Header
The PIC32 WFI32E Curiosity Board provides a header (J207) to access the unused WFI32E01 GPIO pins. The
following table lists the details of the GPIO header.
Table 3-9. GPIO Header Description
Pin
Number
Pin on GPIO Header Pin Description of
GPIO Header
Pin on WFI32E01 Module(1)(2)
1 GND Ground GND
2 GND Ground GND
3 TDI JTAG test data TDI/PGD4/AN9/CVD9/CVDR9/RPB9/RB9
4 GND Ground GND
5 TDO JTAG test data output TDO/AN7/CVD7/CVDR7/RPB7/RB7
6 GND Ground GND
7 TMS JTAG Test mode
select input
TMS/AN6/CVD6/CVDR6/RPB6/RB6
8 GND Ground GND
PIC32 WFI32E
Hardware
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...........continued
Pin
Number
Pin on GPIO Header Pin Description of
GPIO Header
Pin on WFI32E01 Module(1)(2)
9 TCK JTAG test cock TCK/PGC4/AN8/CVD8/CVDR8/RPB8/RB8
10 GND Ground GND
11 MCLR Reset pin MCLR
12 NC Not connected NC
13 U1RX UART1 receive input U1RX
14 NC Not connected NC
15 +3.3 VCC +3.3V
16 NC Not connected NC
17 GND Ground GND
18 NC Not connected NC
19 NC Not connected NC
20 NC Not connected NC
21 NC Not connected NC
22 NC Not connected NC
23 U1TX UART1 transmit
output
U1TX
24 NC Not connected NC
Notes:
1. These are PPS pins and can be configured for any of the supported peripheral functions based on the end
user application.
2. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
3.10 XPRO Header
The PIC32 WFI32E Curiosity Board provides the XPRO header (J203) to have a pin-to-pin compatibility for XPRO
boards. The following table describes the details of the XPRO header pin.
Table 3-10. XPRO Header Pin Description
Pin
Number
Pin on XPRO
Header
Pin Description of XPRO Header Pin on WFI32E01 Module(1)(2)
1 ID(4) Communication line to the ID chip
on an extension board
PTA_BT_PRIO/RPK6/RK6
2 GND Ground GND
3 ADC(+) Analog-to-Digital converter,
alternatively positive part of
differential ADC
TMS/AN6/CVD6/CVDR6/RPB6/RB6
4 ADC(-) Analog-to-Digital converter,
alternatively negative part of
differential ADC
AN14/ANN0/CVD14/CVDR14/RPA14/RA14
PIC32 WFI32E
Hardware
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...........continued
Pin
Number
Pin on XPRO
Header
Pin Description of XPRO Header Pin on WFI32E01 Module(1)(2)
5 GPIO1 General purpose I/O TCK/PGC4/AN8/CVD8/CVDR8/RPB8/RB8
6 GPIO2 General purpose I/O PTA_BT_PRIO/RPK6/RK6
7 PWM(+) Pulse width modulation,
alternatively positive part of
differential PWM
ANA0/RPB12/RB12
8 PWM(-) Pulse width modulation,
alternatively negative part of
differential PWM
USBID/AN2/CVD2/CVDR2/CVDT5/
RPB2/RB2
9 IRQ/GPIO(5) Interrupt request line and/or general
purpose I/O
AN17/CVD17/CVDR17/INT0/RPA10/RA10
10 SPI_SS_B/GPIO Slave select for SPI and/or general
purpose I/O
PTA_BT_ACTIVE/RPK7/RK7
11 I2C_SDA Data line for I2C interface SDA1/RPA5/RA5
12 I2C_SCL Clock line for I2C interface SCL1/RPA4/RA4
13 UART_RX Receiver line of target device UART TDI/PGD4/AN9/CVD9/CVDR9/RPB9/RB9
14 UART_TX Transmitter line of target device
UART
TDO/AN7/CVD7/CVDR7/RPB7/RB7
15 SPI_SS_A Slave select for SPI. This pin must
be preferably unique
PTA_BT_ACTIVE/RPK7/RK7
16 SPI_MOSI Master-out, slave-in line of serial
peripheral interface
PTA_WLAN_ACTIVE/RPK5/RK5
17 SPI_MISO Master-in, slave-out line of serial
peripheral interface
BT_CLK_OUT/RPK4/RK4
18 SPI_SCK Clock for serial peripheral interface SCK2/RPA11/RA11
19 GND Ground GND
20 VCC Power for extension board VCC
Notes:
1. These are PPS pins and can be configured for any of the supported peripheral functions based on the end
user application.
2. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
3. The SPI2 interface on the XPRO board can operate up to 12.5 MHz, and the WFI32E01 module supports up
to 20 MHz.
4. The JP200 jumper must be mounted on the J210 connector to use the ID feature.
5. The JP201 jumper must be mounted on the J211 connector pin2 and pin3 to use this feature.
3.11 Temperature Sensor
Connect an analog output from the temperature sensor (Microchip TC1047A, U204) to one of the analog pins (ANN1/
CVD15/CVDR15/RPA13) of the module's ADC channel.
Note: Short the J209 jumper to enable the temperature sensor.
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 15
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3.12 Serial Flash
The PIC32 WFI32E Curiosity Board has an on-board 32-Mb external SPI Flash (SST26VF032B) memory for storage
of data. The following table describes the details of the serial Flash pin connection.
Table 3-11. Serial Flash Pin Description
Pin
Number
Pin on Serial Flash
(SST26VF032B)
Pin Description of Serial
Flash
Pin on WFI32E01 Module(1)
1 CE Chip Enable SPI1CS/RPA1/RA1
2 SO Serial Data Output for SPI
mode
SDI1/RPC7/RC7
3 WP Write-Protect Not Connected
4 VSS Ground GND
5 SI Serial Data Input for SPI mode SDO1/RPC8/RC8
6 SCK Serial Clock SCK1/RPC6/RC6
7 HOLD Hold Not Connected
8 VDD Input power supply VDD
Note:
1. For more details on the WFI32E01 pins, refer to the PIC32MZ1025W104 MCU and WFI32E01 Module with
Wi-Fi® and Hardware-based Security Accelerator Data Sheet (DS70005425).
3.13 Carrier Board Interface
The WFI32E01 module is connected to the carrier board connector (J401). The following table describes the pinout
details of the J401 connector.
Table 3-12. Carrier Board Interface Description
Pin Number Pin on Carrier Board Pin Description on
Carrier Board
Pin on WFI32E01 Module(1)(2)
1 MCLR Reset MCLR
2 PTA_WLAN_ACTIVE/RPK5 Wi-Fi® and Bluetooth®
coexistence/remappable
peripheral/PORTK digital
I/O
PTA_WLAN_ACTIVE/RPK5/RK5
3 PTA_BT_PRIO/RPK6 Wi-Fi and Bluetooth
coexistence/remappable
peripheral/PORTK digital
I/O
PTA_BT_PRIO/RPK6/RK6
4 PTA_BT_ACTIVE/RPK7 Wi-Fi and Bluetooth
coexistence/remappable
peripheral/PORTK digital
I/O
PTA_BT_ACTIVE/RPK7/RK7
5 BT_CLK_OUT/RPK4 Bluetooth clock out (26
MHz)/remappable
peripheral/PORTK digital
I/O
BT_CLK_OUT/RPK4/RK4
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 16
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Pin Number Pin on Carrier Board Pin Description on
Carrier Board
Pin on WFI32E01 Module(1)(2)
6 SDI1/RPC7 SPI1 serial data input/
remappable peripheral/
PORTC digital I/O
SDI1/RPC7/RC7
7 GND Ground GND
8 CVDT7/ERXERR/RPC9 ADC CVD controller TX
output/Ethernet receive
error input/remappable
peripheral/PORTC digital
I/O
CVDT7/ERXERR/RPC9/RC9
9 SDO1/RPC8 SPI1 serial data output/
remappable peripheral/
PORTC digital I/O
SDO1/RPC8/RC8
10 CVDT16/EMDC/RPK14 ADC CVD controller TX
output/Ethernet
management data clock
output/remappable
peripheral/PORTK digital
I/O
CVDT16/EMDC/RPK14/RK14
11 SCK1/RPC6 SPI1 serial clock/
remappable peripheral/
PORTC digital I/O
SCK1/RPC6/RC6
12 NC Not connected NC
13 NC Not connected NC
14 NC Not connected NC
15 NC Not connected NC
16 NC Not connected NC
17 NC Not connected NC
18 NC Not connected NC
19 NC Not connected NC
20 CVDT15/EMDIO/RPK13 ADC CVD controller TX
output/Ethernet
management data bi-
directional IO/remappable
peripheral/PORTK digital
I/O
CVDT15/EMDIO/RPK13/RK13
21 SPI1CS/RPA1 SPI1 slave select/chip
select/frame sync/
remappable peripheral/
PORTA digital I/O
SPI1CS/RPA1/RA1
22 CVDT14/ERXDV/RPK12 ADC CVD controller TX
output/Ethernet RX data
valid input/remappable
peripheral/PORTK digital
I/O
CVDT14/ERXDV/RPK12/RK12
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 17
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Pin Number Pin on Carrier Board Pin Description on
Carrier Board
Pin on WFI32E01 Module(1)(2)
23 CVDT13/ETXD0/RPC15 ADC CVD controller TX
output/Ethernet transmit
nibble data output/
remappable peripheral/
PORTC digital I/O
CVDT13/ETXD0/RPC15/RC15
24 GND Ground GND
25 CVDT12/ETXD1/RPC14 ADC CVD controller TX
output/Ethernet transmit
nibble data output/
remappable peripheral/
PORTC digital I/O
CVDT12/ETXD1/RPC14/RC14
26 U1TX UART1 transmit output U1TX
27 GND Ground GND
28 U1RX UART1 receive input U1RX
29 CVDT10/ETH_CLK_OUT/RPC12 ADC CVD controller TX
output/Ethernet clock out/
remappable peripheral/
PORTC digital I/O
CVDT10/ETH_CLK_OUT/RPC12/
RC12
30 NC Not connected NC
31 GND Ground GND
32 GND Ground GND
33 GND Ground GND
34 NC Not connected NC
35 CVDT8/ERXD1/RPC10 ADC CVD controller TX
output/Ethernet transmit
nibble data input/
remappable peripheral/
PORTC digital I/O
CVDT8/ERXD1/RPC10/RC10
36 SDA1/RPA5/RA5 I2C1 data/remappable
peripheral/PORTA digital
I/O
SDA1/RPA5/RA5
37 CVDT9/ERXD0/RPC11 ADC CVD controller TX
output/Ethernet transmit
nibble data input/
remappable peripheral/
PORTC digital I/O
CVDT9/ERXD0/RPC11/RC11
38 SCL1/RPA4 I2C1 clock/remappable
peripheral/PORTA digital
I/O
SCL1/RPA4/RA4
39 CVDT11/ETXEN/RPC13 ADC CVD controller TX
output/Ethernet trasnmit
enable output/remappable
peripheral/PORTC digital
I/O
CVDT11/ETXEN/RPC13/RC13
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 18
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Pin Number Pin on Carrier Board Pin Description on
Carrier Board
Pin on WFI32E01 Module(1)(2)
40 GND Ground GND
41 USBID/AN2/CVD2/CVDR2/CVDT5/
RPB2
USB OTG ID input USBID/AN2/CVD2/CVDR2/
CVDT5/RPB2/RB2
42 RF_FE_4/RPK1 RF front-end control/
remappable peripheral/
PORTK digital I/O
RF_FE_4/RPK1/RK1
43 USB_ D+ USB data + USB_ D+
44 RF_FE_2/RPK3 RF front-end control/
remappable peripheral/
PORTK digital I/O
RF_FE_2/RPK3/RK3
45 USB_D- USB data - USB_D-
46 GND Ground GND
47 VBUS VBUS power input VBUS
48 AN14/ANN0/CVD14/CVDR14/
RPA14
Analog input/analog
input/ADC CVD controller
output/ADC CVD controller
RX output/remappable
peripheral/PORTA digital
I/O
AN14/ANN0/CVD14/CVDR14/
RPA14/RA14
49 VBUSON/CVD1/CVDR1/
CVDT6/AN1/RPB1
On signal for external
VBUS source
VBUSON/CVD1/CVDR1/
CVDT6/AN1/RPB1/RB1
50 ANA0/RPB12/RB12 Analog input/remappable
peripheral/PORTB digital
I/O
ANA0/RPB12/RB12
51 GND Ground GND
52 AN15/ANN1/CVD15/CVDR15/
RPA13
Analog input/analog
input/ADC CVD controller
output/ADC CVD controller
RX output/remappable
peripheral/PORTA digital
I/O
AN15/ANN1/CVD15/CVDR15/
RPA13/RA13
53 PGC2/AN4/CVD4/CVDR4/CVDT3/
RPB4
In Circuit Serial
Programming (ICSP)™
programming clock/analog
input/ADC CVD controller
output/ADC CVD controller
RX output/ADC CVD
controller TX output/
remappable peripheral/
PORTB digital I/O
PGC2/AN4/CVD4/CVDR4/
CVDT3/RPB4/RB4
54 AN17/CVD17/CVDR17/INT0/RPA10 Analog input/ADC CVD
controller output/ADC CVD
controller RX output/
External interrupt input 0/
remappable peripheral/
PORTA digital I/O
AN17/CVD17/CVDR17/INT0/
RPA10/RA10
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 19
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Pin Number Pin on Carrier Board Pin Description on
Carrier Board
Pin on WFI32E01 Module(1)(2)
55 PGD2/AN5/CVD5/CVDR5/CVDT2/
RTCC/RPB5
ICSP programming data/
analog input/ADC CVD
controller output/ADC CVD
controller RX output/ADC
CVD controller TX output/
RTCC output clock/
remappable peripheral/
PORTB digital I/O
PGD2/AN5/CVD5/CVDR5/
CVDT2/RTCC/RPB5/RB5
56 GND Ground GND
57 TDO/AN7/CVD7/CVDR7/RPB7 JTAG test data output/
analog input/ADC CVD
controller output/ADC CVD
controller RX output/
remappable peripheral/
PORTB digital I/O
TDO/AN7/CVD7/CVDR7/
RPB7/RB7
58 NC Not connected NC
59 TDI/PGD4/AN9/CVD9/CVDR9/
RPB9
JTAG test data/
programming data input/
ICSP programming data/
analog input/ADC CVD
controller output/ADC CVD
controller RX output/
remappable peripheral/
PORTB digital I/O
TDI/PGD4/AN9/CVD9/CVDR9/
RPB9/RB9
60 NC Not connected NC
61 TCK/PGC4/AN8/CVD8/CVDR8/
RPB8
JTAG test cock/
programming clock input/
ICSP programming clock/
analog input/ADC CVD
controller output/ADC CVD
controller RX output/
remappable peripheral/
PORTB digital I/O
TCK/PGC4/AN8/CVD8/CVDR8/
RPB8/RB8
62 NC Not connected NC
63 TMS/AN6/CVD6/CVDR6/RPB6 JTAG Test mode select
input/analog input/ADC
CVD controller output/ADC
CVD controller RX output/
remappable peripheral/
PORTB digital I/O
TMS/AN6/CVD6/CVDR6/
RPB6/RB6
64 NC Not connected NC
65 SCK2/RPA11 SPI2 clock/remappable
peripheral/PORTA digital
I/O
SCK2/RPA11/RA11
66 NC Not connected NC
67 GND Ground GND
68 NC Not connected NC
PIC32 WFI32E
Hardware
© 2020 Microchip Technology Inc. User Guide DS50003028A-page 20
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